Elevator system

ABSTRACT

An elevator system including a plurality of elevator cars. The elevator cars each include a car controller capable of directing the car to independently answer calls for service from the landings of the associated structure. A system processor controls the plurality of elevator cars by providing assignment signals for the car controllers of all of the cars which override the normal operation of the car controllers and prevent selected calls for service from being considered by selected cars. Failure of the dispatcher to provide assignment signals automatically enables the car controllers of all of the cars to consider all of the calls for service from the landings.

United States'Patent' 1191 I .1111 3,854,554

Booker, Jr. Dec. 17, 1974 ELEVATOR SYSTEM Primary Examiner-Robert K. Schaefer Assistant Examiner-W. E. Duncanson Jr. P P [75] Inventor Clyde A Booker, Jr lttsburgh a Attorney, g or Firm D R. Lackey [73] Assignee: Westinghouse Electric Corporation,

- Pittsburgh, Pa. [57] ABSTRACT 22 Filed; 2 1973 An elevator system including a plurality of elevator cars. The elevator cars each include a car controller [2]] Appl' 340616 capable of directing the car to independently answer calls for service from the landings of the associated [521 vs. Cl 187/29 R Structure A System Processor eehtrels the plurality of [51] Int. Cl B66b l/l8 elevator Cars y Providing asslgnmem Signals for the [58] Field of Search 187/29 ear controllers all of the ears which override the normal operation of the car controllers and prevent [5 R f e Cited 7 selected calls for service from being considered by se- UNITED STATES PATENTS lected cars. Failure of the dispatcher to provide as- 3 signment signals automatically enables the car controllers of all of the cars to consider all of the calls for ser- 3,739,880 6/1973 Robaszkiewicz 187/29 from the landmgs" 13 Claims, 42 Drawing Figures 139 CORRIDOR CALLS ABNORMAL I @Q CONDITIONS SERIALIZER ma 7 44 I46 PROCESSOR I62 ASSIGNMENT REG/IASTER L 6 ggy??? 168 fgi r ,1s9

A COMPABRATOR 177 EMPA RATQR Q FER B E 5cm 1 COUNTER 1W INHIBIT I 191 I93 INHIBIT LOGIC l 172 LOGIC I70 17 v NAN 195 wlmg INHIBIT 7 150'] l I. L. j i

SELEACTOR I SELEITOR I SELECCTOR PATENTEL 3.854.554

SHEET (O1 BF 2'! W G 46 TIMING f" GoRRIDoR' REMAINING GARs CALL SYSTEM op BANK CONTROL PROCESSOR 0a 1 30 w T {9 MOTOR E3 E INTERFAGE' l4 7 6 56 TIMING I L aom L NDING CAR CALL SW T T gJES a :60 62 CONTROL IN F I HATCHWAY fi TIMING 4 E 7 1 44 o "36 E1 TO DOOR FLOOR I-IALL A2 56 A A 888 OPERATOR ELEGToR LANTERNs 2nd LANDING OPERATOR I 4 s I I IMoToR SPEED NDISTANCE 1 CONTROLLER" PATTERN PULSES 40 A I A GENERATOR 24 FIG.I.

. 5 Is? LANDING PULSE M Q fly DETECTOR M64 lo 0 8 2 PULSE DETECTOR FlG.2. v CORRIDOR A GALLs {I38 Y I ya DOWN GoRRIDoR CALLS ABNORMAL EMT I20 (PARALLEL) CONDITIONS, ||8- I02 INHlBlTS (PARALLEL) 1 INHIBITS(PARALL EL.)

l24-- PROCESSOR |Q Q IZBT/ I "4L1 I30 I I I A /-l36 l I v H6 I I I GAR CALLS SECIZSQCTAOR UP 8 DOWN sELEGToR CAR GALLs GA A R CORRIDOR CALLS CAR 8 CAR B I06 (PARALLEL) IIo PAIENTEI, SEC I 7 I974:

FIG.4A E

- SHEET 02 0F 27' CORRIDOR ('38-. I CALLS H4 I20 ABNORMAL EMT '42 CONDITIONS 4 UP8IDOWN CORRIDOR CALLS (SERIAL) v SERIAL INHlB|TS--- g g' w-SERIAL INHIBITS SERIAL UP CALLS1 me L Q 1 l SERIAL I50 A CAR CALLS SELECTOR DOWN ELECTOR CAR CALLS CAR A CAR A CALLS CAR 8 CAR B Ioe' IO4 I05 IIO' FIGZ) CORRIDOR "'2 (I39, A S ABNORMAL 5F 42 'I S CONDITIONS SYSTEM PROCESSOR A I E IS2 I SS GNM NT ASSIGNMENT REGISTER REGISTER CAR A 1 CAR B FLOOR A ADDRESS I A l75- B SCAN B J77, COMPARATOR COUNTER COMPARATOR I A=B IS4 I .INHIBIT INHIBIT OGIC LOGIC 5 I50 *7 I I 4 CAR CALLS SELECTOR SELECTOR CAR CALLS CAR A CAR A CAR 8 CAR 5 KIDS. Io4' los' IIO' SHEEI m3 of 27 CORRIDOR CALLS ABNORMAL CONDITIONS m m AM L 9 9 U B W 0 N C R W m W T B fi T CI N M a u mm L GBC AC [G EC gm 40. W0 L 8 AM I E R 0 w 4 I C B W F 2 2 M m m W N V 1 l T R 8 m M mm o D E 'ES T M B 2 m L7 L4 T WS R T W C A4 S G A E mfiwm mm A 1 L E R M S P M Am mm W v i LA N I H I N Z w B I N W Z 6 5 m E T R I NR II .R EE T IO W m J a m L mm A m E SR AOL l 's A 8 4 HI FIG. 4C

DOWN CORRIDOR CALLS 27 ASSIGNMENT cAR A ASSIGNMENT CAR B llnl llllL IGNM N -CAR c INHIBIT-CAR A INHIBIT CAR B INHIBIT CA R Cv I PATENIEL BEE! 7 I974 SHEET D IflF 27 CORRIOOR [I58 CALLS EMT @2 ABNORMAL I42 CONOITIONS 4 I44 I46 5 FLOOR Y FLOOR SYSTEM IIII O O E PROCESSOR L A E SS ASSIGNMENT ASSIGNMENT 90 REGISTER REGISTER CAR A CAR 8 I A '85 I B SCAN B COMPARATOR COMPARATOR COUNTER V A B-1A=B1 I A B M A B1 PA=BPA B INHIBIT 9 INHIBIT LOGIC LO IC \I92 v I94 ISO CAR CALLS SELECTOR- v T R GAR CALLS CAR A CAR A CAR B CAR 8 \l I I 06' I04 I08 IIO A FIG. 5 L

I CORRIOOR I38 CALLS L59 A NORMAL I42 CONDITIONS I SYSTEM |88 I PROCESSOR T ASSIGNMEN I \8 REGISTER ENABLEI CAR LINE l85 I |64 A SCAN COMPARATOR COUNTER 7 READ ONLY MEMORY I Q CAR ALLS IBI I89 CAR A WNAND LIZ I83 IOG PAIENIEIIIIECIII II I .S',a54'.554

" I sumusnrzp IO 6 9 FI G. a

7 I 6 UP CORRIDOR CALL= ELooRADDRESS DowN CORRIDOR CALL= (FADO-'-FAD6) 5 4 I INHIBITED=Q 3 2 UPSV DETERMINES ADVANCED CAR I WHETHER UP 0R DowN I I PoSITIoN CORRIDOR CALLS ARE "SEEN MDDo. o- I ,o I

MDDI o o l I '2I2 SYSTEM 1 PROCESfifJCORRlDOR CALLS RESET INFO I RESETS/ I I FIG.7.

CAR CALL RESET 2'0 FLOOR E SELECTOR R TS 1 CAR /-2l6 PENTHOUSE CAR CALLS CONTROLLER I MULTIPLEXED I MULT'IPLEXED MULTIPLEXED DARDALI. SETS$- /6AR cAI I S a CAR SIGNALS 228 SCAR CALLS-SERlALIZED I PUSH BUTTONS, CAR SIGNALS MULTIPLEXER MEMORIES,

226 /224/ asERIALIzER JCAR STATION 22o RESETS-SERIALIZED Y-Y-CARK cALI +oTHER cAR SIGNALS! LOW SPEED LINK Hi I I I FIG. IO

" MONlTORING a COMMAND SIGNALS HIGH SPEED LINK 54 TIME 4 V I I--BASIC DATA TRANSMISSION DYCLEA I (am) TIMING DIAGRAM-DUAL DATA TRANSMISSION SYSTEM 'PAIENIEUZIEIIIIIBH I A 3.854.554

saw us or z7 SYSTEM PROCESSOR I00 I ES Q. 3158 R cA R c x I L FIG.8. FLOOR \REsET I SELECTOR INFO -RESETS M J CAR fzls PENTHOUSE CAR CAI-Ls CONTROLLER MuLTIPLExEb /'I CAR CALL SETS 7' MULTIPLEXED MULTIPLEXED 1 QiEZL RESETS CAR CALLs 8. CAR SIGNALS 228' I I r ,CAR CALLS-SERIALIZED CAR S'GNALS/ L I I PUSHBUTTONS,

MEMO IE \MULTIPLEXER REsETs-sERIALIzEo 4 1 & SERIALIZER CAR STATION 23 AUXILIARY l K236 2? I I PUSHBUTTONS,

RESETS SERIAL.IZED

. I MEMORIES a SERIAL sET LINE M' BL CAR cALLs-sERIA IzEo SERIAL sET LINE SYSTEM E PROCEssOR v MuLT II' 'I'ExED MASTER CAR W -H'EEEQE HIGH SPEED I PENTHOUSE CONTROLLER L 474 LINKS I LINKS I I I CORRIDOR CAR I CAR CAR CAR I INTERFACE CONTROLLER ONTROLLER CONTROLLER CONTROLLER 464 466 468 I Pu%%*BTI-?%NS L MULTIPLEXED MULTIPLEXED LOW SPEED LOW SPEED LINKS I I LINKS CAR STAEION CAR I STABION CAR CAR I ST AXION ST A'IB'ION PAIENTEB I w]- 7 sum :15 0f 21 SERVICE 2|LRECTION ,UPSV

- TO NAND TO NAND ccAB , CCBL PATENTEDHEB'!71975:, iv v 3854.554 SHEH "1s QFZT" "IIDATA uNk LC5 v FIG. 2|

E HIGHSPEED SCAN I v 0 'l 2 3 4 5 6 7 a 9 Ion |2|3|4|5 ,JELQQBJIQ 1 BASEMENT I. MAIN-FLOOR but SCAN SLOTS (2M8 EACH) m BO-m m \l a: on; uJ-ro DOWN REsETs-coRRmoR UP RESETS CORRIDOR 1U PRZ- CAR CALLS L'CY' 000 PARITY as =6 a v iwo (so Iwo (x) N...- m p 1w. m

was

1N2 (x) v Ma 'i(x) TOP EXTENSION BASEMENT QMILLIISECONDS 

1. An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to the landings, means for registering calls for service from the landings, car control means for each of said elevator cars, means connecting the calls for service to the car control means of said elevator cars, said car control means being operable for moving its associated elevator car in response to calls for service, and system control means, said system control means being responsive to said calls for service to assign at least certain of said calls to predetermined elevator cars by providing assignment signals for the car control means of all of the elevator cars, said assignment signals overriding and preventing each car control means from considering an assigned call for service which has not been assigned thereto.
 2. The elevator system of claim 1, including monitoring means for detecting abnormal operation of the system control means, said monitoring means preventing the system control means from providing assignment signals when an abnormal operation of the system control means is detected.
 3. The elevator system of claim 1, wherein each car control means includes different gate means for each different call for service, with the means connecting the calls for service to each of the car control means connecting them in parallel to the gating means, and each car control means provides parallel inhibit signals in response to the assignment signals for the gating means associated with the assigned calls for service which are not assigned specifically thereto.
 4. The elevator system of claim 1, wherein each car control means includes first and second gating means for calls requesting service in first and second directions, respectively, with the means connecting the calls for service to the car control means providing first and second serial signals for the first and second gating means, respectively, responsive to calls for service in the first and second directions, respectively, and the car control means provides serial inhibit signals for the first and second gating means synchronized with the assigned calls for service which are not assigned thereto.
 5. The elevator system of claim 1 including scan counter means for repetitively dividing successive predetermined time intervals into a plurality of scan slots, certain of which are assigned to the landings of the structure, wherein the means which connects the calls for service to the car control means of each of the elevator cars places the calls into the appropriate scan slots, and the system control means places the assignment signals into the scan slots of the landings the assigned calls are associated with.
 6. The elevator system of claim 5 wherein the means which connects the calls for service to the car control means of each of the elevator cars serializes the calls for service in the up and down directions to provide first and second serial signals, respectively, each car control means includes first and second gating means for receiving the first and second serial signals, respectively, and each car control means provides serial inhibit signals for its first and second gating means in response to the assignment signals.
 7. An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to the landings, means for registering calls for service from the landings, car control means for each of said elevator cars, means connecting the calls for service to the car control means of said elevator cars, said car control means being operable for moving its associated elevator car in response to calls for service, and system control means, said system control means being responsive to said calls for service to assign at least certain of said calls to predetermined elevator cars by providing assignment signals for the car control means of all of the elevator cars, said assignment signals for each car control means including a first signal which identifies calls assigned to the car control means, and a second signal which identifies all calls which have been assigned, each of said car control means including means for comparing the first and second signals and providing inhibit signals for the landings having assigned calls but which are not specifically assigned thereto, said assignment signals overriding and preventing each car control means from considering an assigned call for service which has not been assigned thereto.
 8. The elevator system of claim 1 wherein each car control means includes inhibit logic means, gating means, and floor selector means, with the inhibit logic means being connected to receive the assignment signals, and to provide inhibit signals in response thereto, the gating means being connected to receive the calls for service and the inhibit signals from the inhibit logic means and provide an output in response thereto, and the floor selector being connected to receive the output of the gating means.
 9. An elevator system, comprising: a structure having a plurality of landings, a plurality of elevator cars mounted for movement relative to the structure to serve the landings, means for registering calls for service from the landings, car control means for each elevator car for moving the elevator car to answer calls for service, means connecting the calls for service to the car control means for each of the elevator cars, means assigning calls for service to predetermined elevator cars, and means comparing the calls assigned to each elevator car with all of the assigned calls and providing inhibit signals for each car control means which block those assigned calls not specifically assigned thereto, from consideration by the associated car control means.
 10. The elevator system of claim 9 including emergency means for detecting abnormal operation of the means which assigns calls for service to predetermined elevator cars, said emergency means preventing said means from assigning calls for service to the elevator cars when an abnormal operation is detected.
 11. The elevator system of claim 9 wherein the means connecting the calls for service to the car control means is a parallel system, with a circuit per call per car controller, and the means providing the assignment signals provides them on a parallel per call per car basis.
 12. The elevator system of claim 9 wherein the means connecting the calls for service to the car control means serializes the calls, and the means providing the assignment signals serializes them on a time basis which conforms to that used to serialize the calls for service, to place the assignment signals for a specific call into the assignment stream at the same time as the call it is associated with.
 13. The elevator system of claim 9 including means for repetitively generating a plurality of scan slots, certain of which are assigned to the landings of the structure, means serializing the calls for service into the appropriate scan slots, means serializing the assigned calls into the appropriate scan slots, and wherein the means which compares the calls assigned to each car with all of the assigned calls provides serial inhibit signals in the appropriate scan slots. 